Lamp-securing means



H. KLEIN.

LAMP SECUBING MEANS, APPLICATION FILED Nov.s,19ls.

mm 19mm my my im,

i, 'lRY KLEIN, 01E' JEREEPORT, NW YORK.

LAMP-SEGURING MEAN S.

Specification of Letters Patent,

Patented duly i9, il92il.

Application led November 3, 1919. Serial No. 335,313.

T 0 all whom t may concern Y Be it known that l, HARRY KLEIN, a citizen of the United States, and resident of Freeport, in the State of New York, have invented certain new and useful Lamp-Securing Means, of which the following is a specification, the same being a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

rlhis invention relates to key controlled fastening means, and in particular to locking devices for lamps, as an appliance for securing in position an incandescent lamp within its socket, and its object is to provide such a device of this character as shall prevent unauthorized withdrawal of the lamp, the invention also comprising a lamp of improved construction and a socket to properly coact with. the same.

ln order to attain the said object and other desirable features and objects Iwhich will be hereinafter setv forth, the invention consists in the construction, arrangement and operation of parts described below.

ln the drawings, illustrative of one embodiment of the invention, which accompany and form a part of this specification,

Figure i represents an elevation of an article constructed `according to my invention;

Fig. is a transverse section of the socket taken in a vertical plane and showing my locking device; 1

Fig. 3 is an elevation of the upper part of the lamp illustrating my closure ringg.

and

Fig. d is a plan View looking upward from the line ll4l, Fig. l, showing the engagement of the screw with the socket.

Referring particularly to the drawings, the numeral l denotes my lamp having an eccentrically located neck 2, around which neck is positioned a tube or band l concentric with the longitudinal axis of the body of the lamp, which band is constructed and arranged to surround the neck of the lamp and to be spaced at one side from the latter.

The said band has an interiorly disposed bearing 6 for a screw 7 and also an orifice 8 adapted to register with the head of the screw and to serve as a key hole for the entrance therethrough of a suitable key. The

` 'upwardly and angular-ly inclined screw vhas a head portion comprising projecting and recessed portions 10 adapted to be engaged by a key of, correspondingly reversed conformation, and at the other end of the said key a point is located constructed and arranged to become interlocked with one of the convolutions at the lower part of the socket at will, the lower edge of the said socket 3 being preferably arranged so as to not entirely cover the closure ring 5 which surrounds the band 4.- and is rotatable thereon, and it may have a knurle'd edge and also an orifice 9 adapted to be registered with, or renioved from, the first named orifice 8 of the band fl, the saidclosure thus serving to form a cover for the orifice 8 in order to normally conceal the said key hole.

, The said bearing 6 and screw 7 are located Within the contour of the band d and the screw is supported at the base of the lamp in the space provided at one side thereof on account of the eccentric formation of the neck of the lamp. The lower part of the band l is preferably shaped so as to bear against the body of the lamp and thus con; ceal the eccentric position of the neck thereof, thus enabling the lamp--which is made with a. central stem-to have a symmetrical appearance and to resemble in conformation that of an ordinary lamp.

The lamp may be secured in the socket in the Ordinar f manner, and then, by rotating the .ring 5 so that the orices 8 and 9 will register with each other, and applying a proper key to the head l() of the screw 7, the latter will be caused to work in its bearing 6 until the `oint of the screw engages the inner face ot one of the convolutions of the screw shell ci? the socket, the spiral conformation of which will prevent any rotation of the lamp by the engagement with the said convolution by the screw carried by the lamp, in consequence of which, the lamp can not be withdrawn until a suitable key is again inserted in the orifice 8 and the screw 7 thereby unscrewed once more so to release the latter from the socket, whereupon the ltlll lamp willbe free to turn and to be withdrawn.

Afke` will be furnished to any onelauf lill the point of the screw may be withdrawn from the socket of the lamp and the latter removed. When it is desired to insert a lamp in the socket, an operation reverse from lthat described will have to be performed, as will be readily7 understood.

The head of the locking screw is normally concealed by the closure ring 5 in order to tend to prevent tampering with the device, and it willvbe necessary, in either inserting or removing a lamp, to rotate the said ring so that its orifice 9 will register with the orifice 8 of the band 4, the said closing of t-he orifice or key hole 8 serving to give the lampv a more finished appearance.

I wish it to be understood that I do not desire to be limited to the particular use or the exact details of construction shown and described, for obvious modifications will occur to persons skilled in the art.

What I claim uas my invention is l. In a device of the class described, a socket, a lamp having the neck thereof ar' ranged eccentrically to the axis of the lamp to provide a spa-ce at one side of said neck and between the latter and the socket, and a locking device arranged in said space.

In a device of the class described, a socket, a lamp having the neck thereof arranged eccentrically to the axis of -the lamp to provide a space at one side thereof and betweenA the latter and the socket, a concentric band encircling the neck, and a locking device arranged in said Space.

3. In a device of the class described, a

socket, a lamp having the neck thereofar-v ranged eccentrically tothe axis of the lamp to provide a space at one side of said neck and between the latter and the socket, a concentric band encirclin the neck and provided with a periphera orifice, and a locking device comprising a screw arranged in Vsaid space and adapted toregister with said orifice. r

4. In a device of the class described, a socket, a lamp having the neck thereof arranged eccentrically to the axis of the lampto rovide a space at one side of said neck an between the latter and the socket, a concentric band encircling the neck and provided with a'peripheral orifice, anda locking device comprising an upwardly and angularly inclined screw arranged in said space and' adapted to register with the orifice.

5. In a device of the class described, a

socket, a lamp having the neck thereof are ranged eccentrically to the axis of the lamp to provide-a space at one side of said neck and between the iatter and the socket, a concentric band encircling the neck andV provided. with peripheral orifice, anda locking device comprising an upwardly inclined screw arranged in saidl s ace and adapted to register with said ori ce and to be engaged with the socket at will. l

6. In a device of the class described, a socket, a lamp having the neck thereof 4,arranged eccentrically to the axis of the lamp to provide a space at one side 0f said neck and between the latter and the socket, a concentric band encircling the neck and provided with a peripheral orifice, and alocking device comprising a key controlled screw arranged in said space and adapted to registe-r with said orifice.

7. In a device of the class described, a socket, a lamp having the neck thereofarranged eccentrically to the axis of the lam to provide a space at one side of said neck and between the latter and the socket, and a locking device arranged in said space comv prising an upwardly inclined screw.

8f. In a device of the class described, a socket, a lamp having the neck thereof arranged eccentrically to the axis of the lamp to provide a space at one side of said neck and between the latter and the socket, a concentric band encircling the neck and provided'with a bearing, and a screw arranged in said space and adapted to work in said also oa ring closure encirclingzthe said band,

alsd having an orifice adapted to be registered with or removed from the first named orifice at will.

l0. In a device of the class described, a socket having a screw shell, an incandescent lamp having a'base to engage therewith, a band or tube around the neck of thelamp and spaced at one side from the latter, and having an orifice, a screw contained in said space and adapted to. register withfthe orifice, and a closure for the said orifice.

1l. In a device ofthe class described, a socket, a lamp having a base, a movable band encircling but spaced from the said base,` and locking means' positioned 'intermediate the baseand band and adapted to en gage the socket.

l2. Ina device of the class described, ay socket, a lamp having a base, a movable' iice to register with the iockin means.

HARR KLEIN. 

